Question

Resolver y verifica la solución hallada?
A.5 + 2x = 5x - 7
B.1+4x - 3 = 6x + 8
C.25x = 120 - 5x + 10x

Answer 1

Respuesta:

1). 5 + 2x = 5x - 7

12 = 3x

12/3 = x

4 = x

2).

1 + 4x - 3 = 6x + 8

-2 + 4x = 6x + 8

-10 = 2x

-10/2 = x

-5 = x

3). 25x = 120 - 5x + 10x

25x = 120 + 5x

20x = 120

x = 120/20

x = 6